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布拉西卡ceae种子粉对伊克索迪德的杀性活性:一种潜在的植物性控制剂
Lina B Flor-Weiler1, William T Hay2, Nathan D Kemp2
1U.S. Department of Agriculture, Agricultural Research Service, National Center for Agricultural Utilization Research, Crop BioProtection Research Unit, 1815 N University St, Peoria, IL, 61604, USA. lina.weiler@usda.gov.
Experimental & applied acarology
|February 20, 2025
概括
来自末家族植物的脱脂种子粉显示出强大的生物烟雾剂活性对抗医学上重要的. 这项研究强调了一种有希望的,环保的替代品,用于虫控制,由于广泛的虫杀虫剂耐药性.
科学领域:
- 农业科学 农业科学
- 昆虫学 昆虫学是一门学科.
- 环境科学 环境科学
背景情况:
- 对公共健康构成重大风险,对合成杀剂的耐药性使控制工作复杂化.
- 来自花科 (末家族) 植物的脱脂种子粉是农业副产品,具有已知的杀虫剂特性.
- 这些植物性材料作为生物烟雾剂的有效性在很大程度上尚未被探索.
研究的目的:
- 评估来自三种科植物物种的脱脂种子粉对三种关键硬物种的生物烟雾活性.
- 为了确定这些植物衍生化合物的比较毒性和有效性,作为潜在的虫杀虫剂.
主要方法:
- 测试了来自Brassica juncea (PG),Lepidium sativum (Ls) 和Thlaspi arvense (DFP) 的脱脂种子粉.
- 对Amblyomma americanum (Aa),Dermacentor variabilis (Dv) 和Ixodes scapularis (Is) 的花进行了生物化试验.
- 计算了中位致命剂量 (LD50) 值以量化毒性.
主要成果:
- 来自所有三种种子的挥发性物体对虫具有显著的生物化活性,在不同物种之间有效性各不相同.
- DFP种子餐显示了物种之间显著的毒性差异 (LD50:Aa为0.056g,Dv为0.031g,Is为0.037g).
- Ls和PG种子显示出差异性的毒性,PG对Ixodes scapularis最有效 (LD50 = 0.009g).
结论:
- 脱脂的Brassicaceae种子是一种可行的,基于植物的控制策略.
- 这些发现支持将这些副产品发展为实用,经济有效和环保的虫杀药.
- 这项研究提供了第一个证据,证明使用脱脂的Brassicaceae种子作为生物烟雾剂.
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